WO2002068023A1 - Seringue a jeter - Google Patents

Seringue a jeter Download PDF

Info

Publication number
WO2002068023A1
WO2002068023A1 PCT/IB2001/001191 IB0101191W WO02068023A1 WO 2002068023 A1 WO2002068023 A1 WO 2002068023A1 IB 0101191 W IB0101191 W IB 0101191W WO 02068023 A1 WO02068023 A1 WO 02068023A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
thruster
plunger
stem
cylinder
Prior art date
Application number
PCT/IB2001/001191
Other languages
English (en)
Inventor
Hans Olaf Hartmann
Jose Victor Alapont Boiguess
Rafael Serra Rodas
Original Assignee
Hans Olaf Hartmann
Jose Victor Alapont Boiguess
Rafael Serra Rodas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hans Olaf Hartmann, Jose Victor Alapont Boiguess, Rafael Serra Rodas filed Critical Hans Olaf Hartmann
Publication of WO2002068023A1 publication Critical patent/WO2002068023A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
    • A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/508—Means for preventing re-use by disrupting the piston seal, e.g. by puncturing

Definitions

  • the technical sector of this patent is the sanitary field, the production and use of hypodermic syringes which contain a liquid and must be injected in a patient or user.
  • EP0759789A1 safe syringe, made up of a mechanism that when activated by a spring, releases a liquid in a way that the plunger reaches the end of the release run involuntarily, remaining inserted in the needle.
  • ES P8900179 single use syringe, is made up of a hollow plunger sharing jointly a thruster hollow with a fixed nucleus, usually dragged to the end of the thruster by a spring; on emptying the liquid, it is embedded in the head of the mouthpiece, freeing the nucleus and taking the needle with it on withdrawal.
  • hypodermic syringes present a double problem: On the one hand the need to be used only once to avoid contagion by members of groups who by habit tend to share syringes, even when they are offered free. On the other hand, the avoidance of risks that professionals and other sanitary personnel face, of being jabbed by an infected needle.
  • the aim of this invention is a one use syringe that comprises the disposal of the needle in such a way that once the jab is done it is unusable.
  • the syringe also has measures that impede its reuse, although the needles retraction isn't activated, so that this double disabling is the guarantee of clinical safety that the syringe described brings.
  • Figure 1 shows a view of the head of the syringe according to a sectional view of said part.
  • Figure 2 shows a complete view of the sectional plan of the syringe in use phase.
  • Figure 3 shows a complete view of the sectional plan of the syringe in self-destruct position.
  • the following are represented by 1, the needle, 2, the open compressed spring, 3, the body of the syringe, 4, the coned stem at the end of the plunger, 5, the blocking piece of the body that holds the needle, 6, the silicon or soft material or elastic ring, 7, the plunger, 8, the slit for the weakening of the coned stem by the plunger, 9, the body that holds the needle, 10, the lips of the blocking piece, 11, ring-shaped space of short thickness arranged at the base of the coned stem 4, 12, the hollow body of the thruster, 13, the ring-shaped groove made in the rear part of the cylinder that makes up the syringe, 14, the tooth in the shape of a foremast that stops the plunger from going back once it has reached the end of its run.
  • the ring shaped groove in the rear part of the cylinder has a fingernail, which could be a series of fingernails or teeth 14, so that the if the tooth or series of teeth are placed in the ring shaped space, the body of the thruster is stuck. This could happen after the freeing of the needle from its initial position. If this wasn't the case, its special arrangement would allow it to be pressed again, introduce the coned stem 4 in the corresponding cavity to free the fastening of the needle; the thruster would be joined to the ring shaped groove again on trying to get it out.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

L'invention porte sur une seringue à jeter comportant un cylindre creux à l'extrémité distale duquel est connecté un support d'aiguille comprenant une aiguille communiquant avec l'intérieur du cylindre, et la tête d'un piston étanche mue dans le cylindre par un poussoir dont la tige présente une cavité intérieure oblongue parallèle à l'axe longitudinal. Ledit support comporte en outre un verrou comportant deux lèvres de blocage entourées d'une bague élastique, et maintenant l'aiguille en place en s'opposant à la force de rappel d'un ressort placé dans le support. La tête du piston entre en contact avec le support de manière à ce qu'après la fin de la course d'injection une nouvelle poussée du poussoir rompe la partie affaiblie de la surface distale du piston et repousse radialement les lèvres de blocage. Une fois l'aiguille dégagée des lèvres de blocage, elle est projetée dans la cavité du poussoir par le ressort de rappel, après quoi le poussoir contenant alors l'aiguille, le ressort de rappel et la partie découpée de la surface du piston reste bloqué dans le cylindre par l'entaille de verrouillage et les rainures respectivement formées sur l'extrémité proximale du poussoir et sur celle du cylindre pour empêcher toute tentative de retrait du piston.
PCT/IB2001/001191 2001-02-28 2001-06-18 Seringue a jeter WO2002068023A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IB0100561 2001-02-28
IBPCT/IB01/00561 2001-02-28

Publications (1)

Publication Number Publication Date
WO2002068023A1 true WO2002068023A1 (fr) 2002-09-06

Family

ID=11004080

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/001191 WO2002068023A1 (fr) 2001-02-28 2001-06-18 Seringue a jeter

Country Status (1)

Country Link
WO (1) WO2002068023A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES8900179A1 (es) 1985-04-10 1989-03-01 Gen Electric Co Plc Un sistema de transaccion adecuado para empleo en operaciones bancarias, de ventas o de seguridad y similares
US5125898A (en) * 1990-03-22 1992-06-30 Harry Kaufhold, Jr. Disposable syringe with automatic needle retraction
US5407431A (en) * 1989-07-11 1995-04-18 Med-Design Inc. Intravenous catheter insertion device with retractable needle
US5407436A (en) * 1991-04-11 1995-04-18 Safe-T-Limited Of Laurel House Syringe with retractable needle
EP0759789A1 (fr) 1994-05-18 1997-03-05 Steven Michael Sutton Seringue de securite
US6228054B1 (en) * 1999-12-03 2001-05-08 Edward D. Dysarz Interchangeable safety needle cannula module that is activated by a safety syringe and plunger module

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES8900179A1 (es) 1985-04-10 1989-03-01 Gen Electric Co Plc Un sistema de transaccion adecuado para empleo en operaciones bancarias, de ventas o de seguridad y similares
US5407431A (en) * 1989-07-11 1995-04-18 Med-Design Inc. Intravenous catheter insertion device with retractable needle
US5125898A (en) * 1990-03-22 1992-06-30 Harry Kaufhold, Jr. Disposable syringe with automatic needle retraction
US5407436A (en) * 1991-04-11 1995-04-18 Safe-T-Limited Of Laurel House Syringe with retractable needle
EP0759789A1 (fr) 1994-05-18 1997-03-05 Steven Michael Sutton Seringue de securite
US6228054B1 (en) * 1999-12-03 2001-05-08 Edward D. Dysarz Interchangeable safety needle cannula module that is activated by a safety syringe and plunger module

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